In December 2018 researchers from Japan and Australia published the results of their study to assess the effect of both inactivity and physical activity with health-related quality of life in older Japanese adults. A total of 287 individuals, aged 65-84 years, were involved in the study. Each individual wore an accelerometer (a device that measures and records movements) for at least 7 days. Health-related quality of life was assessed using a questionnaire. Results showed that replacing inactivity or light-intensity activity with moderate-high-intensity activity contributed to better physical health-related quality of life.
Yasunaga A et al. Replacing sedentary time with physical activity: effects on health-related quality of life in older Japanese adults. Health Qual Life Outcomes. 2018 Dec 27;16(1):240